"The only viable way to accept the gift and meet the challenge of longevity is to match the dramatic transformation of the 20th century that made it possible to grow old, with an equally dramatic and fundamentally new way of being old." — Kathryn Lawler, welcoming the Lifelong Communities Charrette Team, February 2009

Underfloor Air Distribution (UFAD) is a method of air conditioning the space by supplying the air from the floor, using natural buoyancy forces to lift it to the ceiling, as opposed to the conventional systems, which supply air from the ceiling down to the occupants, working against the natural forces of buoyancy.
(Published 2012.0725)